Xref: utzoo alt.msdos.programmer:899 comp.sys.tandy:1905 comp.sys.ibm.pc:40129
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!samsung!brutus.cs.uiuc.edu!psuvax1!psuvm!cunyvm!maine.bitnet!jgrover
From: JGROVER@MAINE.BITNET (John Grover)
Newsgroups: alt.msdos.programmer,comp.sys.tandy,comp.sys.ibm.pc
Subject: Re: HELP!!!!!!
Message-ID: <89349.143606JGROVER@MAINE.BITNET>
Date: 15 Dec 89 19:36:06 GMT
References: <89346.001555DGH103@PSUVM.BITNET> <649@sppy00.UUCP>
Lines: 7

I think Jim Vickroy is on the right track except the register is
write only -- so we need to find a way to read the current status
before writing to the register. Otherwise, we don't know what value
to write to the register.

John Grover
University of Maine Computing Center